Color in currency design

Quick answer：

The color in currency design serves various purposes such as distinguishing different denominations, enhancing security features, and conveying cultural significance. Currency notes and coins often feature specific colors that are chosen for their durability, visibility, and association with the country's heritage. For example, green is commonly used for higher denomination notes due to its rarity in nature, and metallic colors are often used for coins to make them more durable and visible.